JP6410667B2 - Replacement container - Google Patents

Description

  The present invention relates to a replacement container.

2. Description of the Related Art Conventionally, as shown in Patent Document 1 below, for example, a replacement container is known in which a discharger is attached to the mouth of a container main body in which contents are stored. The replacement container includes a cap that is detachably attached to the mouth portion of the container main body, and an inner member that is disposed in the mouth portion and has an accommodating cylinder portion that accommodates the cylinder of the discharger.
In this replacement container, when performing a replacement operation for attaching a discharger to the mouth part, after removing the cap from the mouth part, the discharger is made to enter the mouth part from the cylinder side, and the mounting cylinder of the discharger is attached to the mouth part. Installing. Thereby, a discharger is attached to a mouth part in the state where a cylinder was stored in a storage cylinder part.

JP 2004-149195 A

By the way, the accommodation cylinder part of the replacement container described above has a communication opening that communicates the inside of the container body and the inside of the accommodation cylinder part, and introduces outside air into the container body during decompression of the container body accompanying the discharge operation of the discharger. Is formed. Therefore, in an unused state such as a distribution stage, the contents in the container main body may enter the accommodating cylinder through the communication opening.
In this case, when the above-described replacement operation is performed in a state where the contents enter the storage cylinder, the contents adhere to the outer peripheral surface of the cylinder in the storage cylinder and the cylinder becomes dirty.

  The present invention has been made in view of such circumstances, and its purpose is to suppress the entry of the contents into the accommodating cylinder in an unused state, and to prevent the contents from adhering to the outer peripheral surface of the cylinder. It is to provide a replacement container that can be suppressed.

(1) A replacement container according to the present invention includes a container main body in which contents are stored, a cap that is detachably attached to a mouth portion of the container main body, and a storage cylinder portion disposed in the mouth portion. An inner member, and a press-type discharge device for discharging the contents from the discharge hole by pressing the pressing head is attached to the mouth portion from which the cap has been detached. A cylinder that communicates with the discharge hole is a replacement container that is accommodated in the accommodating cylinder, wherein the accommodating cylinder is formed with a communication opening that communicates the inside of the container main body and the accommodating cylinder. A closed cylinder that is slidably fitted in the receiving cylinder part and closes the communication opening from the inside of the receiving cylinder part, and a biasing support that supports the cylinder so as to be movable downward in an upwardly biased state. A body of the closed cylinder A communication recess that opens toward the communication opening is formed on the peripheral surface, and the closing cylinder is inserted into the housing cylinder part against the upward biasing force of the biasing support. The communication recess is fixed when the cylinder and the closing cylinder are restored and displaced upward with respect to the storage cylinder by the upward biasing force of the biasing support. It communicates with the outside of the section.

  According to the replacement container according to the present invention, the inner member includes the closed cylinder that closes the communication opening formed in the storage cylinder from the inside of the storage cylinder, so that the contents in the container main body pass through the communication opening. It can suppress entering into a storage cylinder part. Therefore, for example, when the contents are difficult to enter into the storage cylinder when not in use, for example, during the distribution stage, it is possible to prevent the contents from adhering to the outer peripheral surface of the cylinder in the storage cylinder when attaching the discharge device thereafter. .

  Also, when attaching the dispenser to the mouth part from which the cap has been removed, if the cylinder is inserted into the receiving cylinder and the cylinder is pushed against the upward biasing force of the biasing support, the closed cylinder is fitted over the cylinder and fixed. Is done. As a result, when the cylinder rises due to the restoring deformation of the urging support, the closing cylinder rises with respect to the accommodating cylinder portion along with the cylinder. As the closed cylinder rises, the communication recess communicates with the outside of the housing cylinder. At this stage, attachment of the discharge device (replacement of the discharge device to the replacement container) is completed.

After that, when performing the discharge operation of the discharger, the pressing head is pressed down to push the cylinder against the upward biasing force of the biasing support, and the pressing head is lowered with respect to the cylinder by further pressing the pressing head. By doing so, the contents in the cylinder can be discharged to the outside through the discharge holes. At this time, since the closed cylinder is lowered together with the cylinder, the communication concave portion communicating with the outside is also lowered. Therefore, the communication opening communicates with the communication recess while being closed from the inside of the housing cylinder portion by the closing cylinder.
Accordingly, when the contents in the container body are caused to flow into the cylinder by releasing the pressing head, the outside air accumulated in the communication recess can be caused to flow into the container body through the communication opening, or In the process of moving upward together with the cylinder with respect to the storage cylinder, the communication opening and the outside of the storage cylinder can be communicated with each other through the communication recess to allow the outside air to flow into the container body. Therefore, air replacement can be performed, and a smooth discharge operation by the discharger can be performed.

(2) The communication recess may be blocked from communicating with the communication opening when the closed cylinder is restored and displaced upward with respect to the housing cylinder by an upward biasing force of the biasing support.

  In this case, after the discharge device is attached to the replacement container, the discharge operation is not performed.For example, during storage, it is possible to prevent the outside of the housing cylinder portion from communicating with the communication opening through the communication recess. It is easy to prevent the leakage of objects and maintain the quality of the contents.

  According to the replacement container according to the present invention, it is possible to suppress the entry of the contents into the storage cylinder portion in the unused state, and it is possible to suppress the adhesion of the contents to the outer peripheral surface of the cylinder.

It is a longitudinal cross-sectional view which shows embodiment of the replacement container which concerns on this invention. It is a longitudinal cross-sectional view which shows the state which inserted the cylinder of the discharger in the accommodation cylinder part of the replacement container shown in FIG. 1, and mounted | wore the mounting | wearing cap with the opening | mouth part of the container main body. It is a longitudinal cross-sectional view which shows the state which pushed in the cylinder by pushing down a pressing head from the state shown in FIG. 2, and made the cylinder closed on the cylinder. It is a longitudinal cross-sectional view which shows the state which raised the pressing head from the state shown in FIG. 3, and returned to the original position. It is a longitudinal cross-sectional view which shows the modification of the replacement container which concerns on this invention. It is a longitudinal cross-sectional view which shows the state which attached the discharge device to the replacement container shown in FIG. It is a side view which shows the modification of the obstruction | occlusion unit in the replacement container shown in FIG. It is a side view which shows another modification of the obstruction | occlusion unit in the replacement container shown in FIG.

Hereinafter, embodiments of a replacement container according to the present invention will be described with reference to the drawings.
As shown in FIG. 1, the replacement container 1 of the present embodiment has a bottomed cylindrical container main body 2 in which contents are accommodated, and a top cylindrical shape that is detachably attached to the mouth 2 a of the container main body 2. The cap 3 and the cylindrical inner member 4 disposed inside the mouth 2a of the container body 2 are provided.

The container main body 2, the cap 3 and the inner member 4 are arranged in a state where their central axes are located on a common axis.
Below, this common axis | shaft is called the container axis | shaft O, the cap 3 side along the container axis | shaft O is upper, and the bottom 2b side of the container main body 2 is called the downward direction. In addition, a direction orthogonal to the container axis O in a plan view viewed from the container axis O direction is referred to as a radial direction, and a direction around the container axis O is referred to as a circumferential direction.

  In the illustrated example, the cap 3 is screwed into the mouth portion 2a of the container body 2. However, the cap 3 is not limited to screwing, and the cap 3 can be attached to the mouth portion 2a as long as the mouth portion 2a is removable. It may be attached to 2a.

  The inner member 4 is inserted inside the mouth portion 2 a of the container body 2. As shown in FIG. 1 and FIG. 2, the inner member 4 is fitted into the accommodating cylinder portion 10 in which a cylinder 60 of the discharge device 50 described later is accommodated, and the suction that sucks up the contents. Arranged in the accommodating cylinder part 10, the closed cylinder 12 fitted in the accommodating cylinder part 10 so as to be slidable up and down, the inner cylinder part 13 fitted inside the accommodating cylinder part 10, and the accommodating cylinder part 10 And an elastic ring (biasing support) 14 that supports the cylinder 60 accommodated in the accommodating cylinder portion 10 so as to be movable downward in an upwardly biased state.

The accommodating cylinder portion 10 extends along the container axis O direction, and is formed in a multistage cylindrical shape whose diameter is gradually reduced from the upper side toward the lower side.
The accommodating cylinder portion 10 includes a base cylinder portion 20 having a flange portion 21 formed at an upper end edge, and a middle tube 22 that extends downward from the lower end portion of the base cylinder portion 20 and has a diameter smaller than that of the base cylinder portion 20. And a lower cylinder 23 further extending downward from the lower end of the intermediate cylinder 22 and having a diameter smaller than that of the intermediate cylinder 22.

  The base tube portion 20 is an upper base tube portion 25 having the largest diameter among the accommodation tube portions 10, and a lower base tube portion 26 positioned below the upper base tube portion 25 and having a diameter smaller than that of the upper base tube portion 25. And. Thereby, a flange-shaped first step portion 27 is formed at a connection portion between the upper base tube portion 25 and the lower base tube portion 26.

The flange portion 21 is formed in an annular shape so as to protrude radially outward from the upper end edge over the entire circumference of the upper end edge of the upper base tube portion 25. The flange portion 21 is disposed on the upper end opening edge of the mouth portion 2 a in the container main body 2 via an annular packing 28. However, the packing 28 is not essential and may not be provided.
A communication groove 29 extending over the entire length in the radial direction is formed on the upper surface of the flange portion 21. Only one communication groove 29 may be formed, or a plurality of communication grooves 29 may be formed at intervals in the circumferential direction.

  On the inner peripheral surface of the upper base cylinder portion 25, a recess portion 30 that is recessed in, for example, a curved shape in a longitudinal sectional view is formed. A communication opening 31 that connects the inside of the container main body 2 and the inside of the housing cylinder portion 10 is formed in a portion of the upper base cylinder portion 25 that is positioned below the recess 30.

The lower base cylinder part 26 extends toward the bottom part 2 b so as to enter the inside of the container body 2 from the lower end part of the upper base cylinder part 25. The middle tube 22 is connected to the lower end of the lower base tube portion 26. At this time, a flange-like second step portion 32 is formed at a connection portion between the lower base tube portion 26 and the middle tube 22.
The suction cylinder portion 11 has an upper end fitted into the lower cylinder 23 and a lower end adjacent to the bottom 2b of the container body 2 from above. In the illustrated example, the suction cylinder portion 11 is gradually curved toward the radially outer side as the lower end side is directed to the lower end opening edge. In the state located at the corners of the main body 2, it is opened substantially downward. Thus, it is possible to suck up the contents without leaving the contents through the suction cylinder 11.
However, the shape of the suction cylinder part 11 is not limited to this case, For example, you may be made into the shape where the full length from an upper end part to a lower end part is straight.

The closing cylinder 12 is fitted in the upper base cylinder portion 25 so as to be vertically slidable, and closes the communication opening 31 from the inside of the housing cylinder portion 10.
The closed cylinder 12 is formed in a cylindrical shape whose inner diameter is substantially the same as the inner diameter of the lower base cylinder portion 26, and the lower end opening edge is in contact with the first step portion 27 from above. As a result, further downward movement of the closed cylinder 12 is restricted. At this time, the upper end opening edge of the closed cylinder 12 protrudes above the flange portion 21 and is in contact with the lower surface of the cap 3.

On the outer peripheral surface of the closing cylinder 12, an annular regulation protrusion 12 a that protrudes radially outward over the entire circumference and is accommodated in a recess 30 formed in the upper base cylinder part 25 is formed. The restricting protrusion 12a is not limited to an annular shape, and may be intermittently arranged at intervals in the circumferential direction.
The closing cylinder 12 can be moved up and down within a range in which the regulation protrusion 12 a is accommodated in the recess 30. Therefore, when the restricting projection 12a comes into contact with the upper inner edge portion of the recessed portion 30, further upward movement of the closing cylinder 12 is restricted (see FIG. 4).

  Further, a communication recess 12 b is formed on the outer peripheral surface of the closing cylinder 12. The communication recess 12b is formed in a portion located below the restricting protrusion 12a and above the lower end opening edge of the closing cylinder 12, and opens toward the outside in the radial direction. Thereby, the communication recess 12 b communicates with the communication opening 31.

  However, on the outer peripheral surface of the closed cylinder 12, each part connected to the communication recess 12 b from above and below is in close contact with each part connected to the communication opening 31 from above and below on the inner peripheral surface of the upper base cylinder part 25. ing. Therefore, the communication through the communication opening 31 and the communication recess 12b between the container main body 2 and the housing cylinder 10 is blocked.

The communication recess 12b moves above the communication opening 31 when the closing cylinder 12 moves upward relative to the housing cylinder 10 and further movement is restricted by the restriction protrusion 12a (see FIG. 4). Therefore, in this state, the communication between the communication recess 12b and the communication opening 31 is blocked.
On the other hand, the communication recess 12 b communicates with the recess 30 formed in the upper base cylinder 25 when the closed cylinder 12 moves upward with respect to the housing cylinder 10. Therefore, the communication recess 12 b communicates with the outside of the housing cylinder portion 10 through the recess portion 30 and a communication groove 29 formed on the upper surface of the flange portion 21.

  The communication recess 12 b communicates with both the communication opening 31 and the recess 30 in the process in which the closing cylinder 12 moves upward with respect to the housing cylinder 10. Therefore, in the process in which the closing cylinder 12 moves upward with respect to the housing cylinder portion 10, the inside of the container body 2 and the outside of the container body 2 communicate with each other through the communication opening 31, the communication recess 12 b, and the communication groove 29.

  In the closed cylinder 12 configured as described above, when the discharge device 50 is attached to the replacement container 1, as shown in FIG. 3, the cylinder 60 is inserted into the accommodation cylinder portion 10, and the upward biasing force of the elastic ring 14 When the cylinder 60 is pushed against the above, it is externally fitted to the cylinder 60 and integrally fixed. Therefore, thereafter, the closing cylinder 12 moves up and down with the cylinder 60.

  As shown in FIGS. 1 and 2, the inner cylinder portion 13 includes a cylindrical inner cylinder main body 40 fitted inside the middle-stage cylinder 22 and a radial direction from the upper end portion of the inner cylinder main body 40 to the entire circumference. And a collar portion 41 that protrudes outward and is disposed on the second step portion 32.

  A disc-shaped plug member 42 that closes the inside of the inner cylinder main body 40 is connected to the inner peripheral surface of the inner cylinder main body 40 via a weakening portion 43 that can be broken. The weakening portion 43 is formed thinner than the plug member 42 and surrounds the outer peripheral edge of the plug member 42 over the entire circumference. Thereby, the plug member 42 blocks communication between the inside of the container main body 2 and the inside of the housing cylinder portion 10 through the inner cylinder portion 13 when not in use at the distribution stage or the like.

The plug member 42 in the illustrated example is formed in a curved surface protruding upward. Further, a protrusion 44 that protrudes upward is formed on a part of the plug member 42 in the circumferential direction. For example, the protrusion 44 is formed in a T shape in a plan view as viewed from the container axis O direction.
The plug member 42 may be configured such that a part in the circumferential direction is directly connected to the inner peripheral surface of the inner cylinder main body 40 and the other part is connected to the inner cylinder main body 40 via the weakening portion 43. I do not care. Moreover, the inner cylinder part 13 is not essential and may not be provided. In this case, the plug member 42 may be connected to the inner peripheral surface of the middle tube 22.

The elastic ring 14 is formed in an annular shape from a soft material that can be elastically deformed, such as nitrile rubber, butyl rubber, silicon rubber, elastomer, urethane, and the like, and is disposed on the flange portion 41 of the inner cylinder portion 13.
The elastic ring 14 includes an outer peripheral portion 46 fitted into the lower base cylinder portion 26, an inner peripheral portion 47 positioned inside the outer peripheral portion 46, and upper ends of the outer peripheral portion 46 and the inner peripheral portion 47. And a connecting portion 48 formed in a curved shape protruding upward.

The outer peripheral portion 46 is undercut fitted to an engaging protrusion 49 projecting from the inner peripheral surface of the lower base tube portion 26. Thereby, the elastic ring 14 is fitted in a state in which the elastic ring 14 is prevented from coming off upward.
The elastic ring 14 is elastically deformed with a force smaller than a spring force when a coil spring 64 of the discharger 50 described later is elastically deformed. Further, when the inner cylindrical portion 13 is not provided, for example, the second step portion 32 may be formed so as to protrude further inward in the radial direction, and the elastic ring 14 may be disposed on the second step portion 32.

Next, the dispenser 50 attached to the replacement container 1 configured as described above will be briefly described.
As shown in FIG. 2, the discharger 50 has a push-down head 53, a pump part 51 that discharges the contents stored in the container body 2, and a mounting cap 52 that attaches the pump part 51 to the container body 2. , A push-down type dispenser.

  The mounting cap 52 includes a mounting cylinder 55 that is screwed into the mouth portion 2a of the container body 2, an annular first flange plate 56 that protrudes radially inward from the upper end of the mounting cylinder 55, and a first flange plate. An upright cylinder 57 extending upward from the inner edge of 56, an annular second flange plate 58 projecting radially inward from the upper end of the upright cylinder 57, and the upright cylinder 57 and the second flange plate 58; And a guide tube 59 that extends upward from the connecting portion and guides the movement of the pressing head 53 along the container axis O direction.

The mounting cylinder 55 only needs to be detachable from the mouth portion 2a of the container body 2, and is not limited to screwing.
The first flange plate 56 is disposed on the flange portion 21 of the accommodating cylinder portion 10. Note that the communication groove 29 formed in the flange portion 21 of the housing cylinder portion 10 communicates with the outside through a gap between the mouth portion 2 a of the container body 2 and the mounting cylinder 55. Thereby, it is possible to allow outside air to flow into the communication groove 29 from the outside through the gap.
The upright cylinder 57 is formed to have substantially the same diameter as the mouth portion 2 a of the container body 2. The second flange plate 58 is spaced above the closing cylinder 12 and slightly protrudes radially inward from the closing cylinder 12.

  The pump portion 51 is disposed in the accommodating cylinder portion 10 so as to be movable up and down, and a lower portion is inserted into the cylinder 60 and is disposed so as to be movable downward in an upwardly biased state with respect to the cylinder 60. The stem 61, the piston 62 linked to the vertical movement of the stem 61 and fitted in the cylinder 60 so as to be vertically slidable, and the piston fitted into the cylinder 60 and supporting the outer peripheral portion of the piston 62 from above The presser 63 is mounted between the presser head 63 and the presser head 53 which is attached to the upper end portion of the stem 61 and has a discharge hole 53a for discharging the contents, and the piston presser 63 and the presser head 53. A coil spring 64 biasing upward.

  The cylinder 60 is formed in a multistage cylindrical shape that gradually decreases in diameter from the upper side toward the lower side, the upper cylindrical portion 65 is accommodated in the base cylindrical portion 20 in the accommodating cylindrical portion 10, and the lower cylindrical portion 66 is accommodated in the accommodating cylinder. It is accommodated in the middle tube 22 in the part 10. Further, in the cylinder 60, an annular connecting plate 67 that connects the lower end portion of the upper tube portion 65 and the upper end portion of the lower tube portion 66 is provided with respect to the elastic ring 14 disposed in the housing tube portion 10. Abut from above.

  As a result, the cylinder 60 is disposed in the accommodating cylinder portion 10 while being supported by the elastic ring 14 so as to be movable downward in the upward biased state. Accordingly, the discharge device 50 attached to the replacement container 1 is in a state where the entire device excluding the mounting cap 52 is supported by the elastic ring 14.

  The cylinder 60 is restricted from further upward movement when the upper end portion of the upper cylinder portion 65 contacts the second flange plate 58 of the mounting cap 52 from below. The upper end portion of the upper cylindrical portion 65 is slightly larger in diameter than the other portions, and as shown in FIG. 3, when the cylinder 60 is pushed against the upward biasing force of the elastic ring 14, Fits tightly inside. Accordingly, the closed cylinder 12 is fitted on the upper end portion of the upper cylinder portion 65 and is fixed to the cylinder 60 integrally.

  Next, a replacement operation for attaching the discharge device 50 configured as described above to the replacement container 1 will be described.

  In this case, after the cap 3 shown in FIG. 1 is detached from the mouth 2a of the container main body 2, as shown in FIG. 2, the discharger 50 enters the accommodating cylinder 10 from the cylinder 60 side, The mounting cylinder 55 of the mounting cap 52 is screwed into the mouth portion 2 a of the container body 2. Then, in the cylinder 60, the upper tube portion 65 is housed in the base tube portion 20 in the housing tube portion 10, and the lower tube portion 66 is housed in the middle tube 22 in the housing tube portion 10.

  When the mounting cap 52 and the replacement container 1 are rotated relative to each other in the tightening direction around the container axis O in the process of screwing the mounting cap 52 into the mouth portion 2a, the discharge device 50 is moved along with the relative rotation. Move downward relative to As a result, the lower cylinder portion 66 of the cylinder 60 abuts against the protrusion 44 of the plug member 42 from above, and the connecting plate 67 abuts against the elastic ring 14 from above.

  Then, at the stage where the mounting cap 52 is mounted on the mouth portion 2 a, the plug member 42 is pushed downward by the lower tube portion 66 of the cylinder 60. Thereby, the weakening part 43 is fractured | ruptured, the at least one part of the circumferential direction in the plug member 42 detach | leaves from the inner cylinder part 13, and the inner cylinder part 13 is open | released. As a result, the inside of the container body 2 and the inside of the cylinder 60 communicate with each other through the inner cylinder portion 13.

In the present embodiment, since the projection 44 is formed on the plug member 42, the pressing force that acts on the plug member 42 from the lower cylinder portion 66 acts locally via the projection 44. Thereby, the part located in the periphery of the protrusion 44 among the weakened parts 43 becomes a starting point of a fracture | rupture, and the weakened part 43 can be fractured | smoothed smoothly.
If the inside of the container main body 2 and the inside of the cylinder 60 communicate with each other through the inner cylinder portion 13, the entire plug member 42 may be detached from the inner cylinder portion 13, and a part of the plug member 42 is connected to the inner cylinder portion 13. It may be in a connected state.

By the way, when the mounting cap 52 is mounted on the mouth portion 2a, the closed cylinder 12 is not fitted to the cylinder 60 as shown in FIG.
Therefore, after the mounting cap 52 is mounted, as shown in FIG. 3, the pressing head 53 is pressed to push down the portion of the ejector 50 excluding the mounting cap 52. As a result, the cylinder 60 can be pushed downward against the upward biasing force of the elastic ring 14. Therefore, the elastic ring 14 can be elastically deformed so as to be crushed, and the cylinder 60 can be moved downward by the amount of elastic deformation. Therefore, the upper end part of the upper cylinder part 65 in the cylinder 60 can be strongly fitted inside the closed cylinder 12, and the closed cylinder 12 can be externally fitted to the cylinder 60 and fixed integrally. Therefore, thereafter, the cylinder 60 and the closed cylinder 12 can be moved up and down integrally.

Therefore, as shown in FIG. 4, when the pressing of the pressing head 53 is released, the elastic ring 14 is restored and deformed, and the cylinder 60 is moved upward, the closed cylinder 12 is accommodated in the accommodating cylinder portion 10 as the cylinder 60 is raised. Can be raised against. Then, as the closed cylinder 12 is raised, the communication recess 12 b communicates with the recess 30. Accordingly, the communication recess 12b and the outside of the container body 2 are in communication with each other through the communication groove 29 formed on the upper surface of the recess 30 and the flange 21. At this time, the communication recess 12b is located above the communication opening 31, and the communication between the communication recess 12b and the communication opening 31 is blocked.
Thus, the replacement operation of the discharge device 50 with respect to the replacement container 1 is completed.

  Thereafter, when the contents are discharged by performing the discharge operation of the discharge device 50, as shown in FIG. 3, the pressing head 53 is pressed, and the portion of the discharge device 50 excluding the mounting cap 52 is pressed down. Accordingly, the elastic ring 14 can be elastically deformed in the same manner as described above, and the cylinder 60 can be moved downward by the amount of elastic deformation. Further, when the elastic ring 14 is crushed, further downward movement of the cylinder 60 is restricted, so that the stem 61 and the piston 62 can be moved downward relative to the cylinder 60 by further pressing the pressing head 53.

Then, since the piston 62 slides downward on the inner peripheral surface of the upper cylinder portion 65 in the cylinder 60, the inside of the cylinder 60 is pressurized. As a result, the contents in the cylinder 60 flow through the stem 61 and the pressing head 53 and reach the discharge holes 53 a of the pressing head 53. As a result, the contents can be discharged to the outside through the discharge holes 53a.
Since the closing cylinder 12 moves downward together with the cylinder 60 when the pressing head 53 is pressed, the communication opening 31 communicates with the communication recess 12b while being closed from the inside of the housing cylinder part 10 by the closing cylinder 12.

  When the pressing of the pressing head 53 is released after the contents are discharged, as shown in FIG. 4, the stem 61, the piston 62 and the pressing head 53 are restored and moved upward relative to the cylinder 60, and the elastic ring 14 is also restored and deformed. Therefore, the cylinder 60 and the closed cylinder 12 are restored and moved upward with respect to the accommodating cylinder portion 10.

The stem 61, the piston 62, and the pressing head 53 are restored and moved upward with respect to the cylinder 60, so that the contents in the container body 2 flow into the cylinder 60 through the suction cylinder 11. Thereby, while being able to prepare for next discharge, the inside of the container main body 2 is pressure-reduced.
However, at the same time, the cylinder 60 and the closed cylinder 12 are restored and moved upward with respect to the accommodating cylinder portion 10, so that the communication recess 12 b moves upward with respect to the communication opening 31. Accordingly, in the process, the communication recess 12 b communicates with both the communication opening 31 and the recess 30. Thereby, the communication opening 31 and the outside of the container main body 2 can be communicated with each other through the communication recess 12 b, and the outside air can flow into the container main body 2.
As a result, air replacement can be performed appropriately, and a smooth discharge operation by the discharge device 50 can be performed.

  When the closing cylinder 12 moves to the rising end position with respect to the accommodating cylinder portion 10 with the return of the pressing head 53, the communication recess 12b moves above the communication opening 31 as shown in FIG. Communication between 12b and the communication opening 31 is blocked.

  As described above, as shown in FIGS. 1 and 2, the replacement container 1 of the present embodiment includes the closed cylinder 12 in which the inner member 4 closes the communication opening 31 from the inside of the accommodating cylinder portion 10. It can suppress that the contents in the container main body 2 enter into the accommodation cylinder part 10 through the communication opening 31. Therefore, for example, the contents hardly enter the storage cylinder 10 in an unused state such as a distribution stage. Therefore, when performing a replacement operation for attaching the discharge device 50 to the replacement container 1, It is possible to suppress the contents from adhering to the outer peripheral surface or the like.

On the other hand, when the discharge operation of the discharge device 50 is performed, the outside air can flow into the container body 2 through the communication recess 12b and the communication opening 31 when the pressure in the container body 2 is reduced due to the discharge operation. Smooth discharge operation can be performed.
Furthermore, after the discharge device 50 is attached to the replacement container 1, the discharge operation is not performed. For example, during storage, the communication between the communication recess 12b and the communication opening 31 is blocked as shown in FIG. Communication between the outside of 2 and the communication opening 31 can be blocked. Therefore, leakage of the contents can be prevented and the quality and the like of the contents can be easily maintained.

  The technical scope of the present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the above-described embodiment, the communication recess 12b communicates with both the communication opening 31 and the recess 30 in the process in which the communication recess 12b moves upward with respect to the communication opening 31. It is not necessary to make the hollow part 30 and the communication opening 31 communicate with each other.

For example, the communication recess 12b may be formed so as to be recessed, for example, in a hemispherical shape so that outside air necessary for air replacement can be stored in the communication recess 12b, thereby ensuring a large internal volume.
In this case, when the closed cylinder 12 rises with respect to the accommodation cylinder portion 10 and the communication recess 12b communicates with the outside of the accommodation cylinder portion 10, the outside air can be stored in the communication recess 12b. When the closed cylinder 12 is lowered with respect to the accommodating cylinder 10 by the discharge operation of the contents and the communication recess 12b communicates with the communication opening 31, the air stored in the communication recess 12b flows into the container body 2. Can be made. Therefore, even in this case, air replacement can be performed.

Moreover, in the said embodiment, although the elastic ring 14 was employ | adopted as an urging | biasing support body which supports the cylinder 60 so that a cylinder 60 can be moved downward in an upward urging | biasing state, it is not limited to this case. For example, a leaf spring or a coil spring may be employed.
When a leaf spring or a coil spring is employed, it may be arranged at the same position as the elastic ring 14 instead of the elastic ring 14, but may be formed integrally with the closed cylinder 12.

For example, as shown in FIGS. 5 and 6, the closed cylinder 12, a ring 72 disposed below the closed cylinder 12 and having the same diameter as the closed cylinder 12, and between the closed cylinder 12 and the ring 72, A cylindrical closure unit including a coil spring (biasing support) 73 that is disposed and has an upper end connected to the lower end opening edge of the closing cylinder 12 and a lower end connected to the upper end opening edge of the ring 72. A replacement container 70 having 71 may be used.
The closing unit 71 in this case may be accommodated in the upper base cylinder portion 25 in a state where the ring 72 is disposed on the second step portion 32. Even with the replacement container 70 configured as described above, the same effects can be achieved.

Further, as shown in FIG. 7, a closing unit 80 in which a plurality of leaf springs (biasing support bodies) 81 are connected to the lower end opening edge of the closing cylinder 12 may be used. In the illustrated example, the plurality of leaf springs 81 are arranged at intervals in the circumferential direction, and gradually bend outward in the radial direction as they go downward from the lower end opening edge of the closing cylinder 12. It extends. The closing unit 80 in this case may be accommodated in the upper base cylinder portion 25 in a state where the lower end portion of the leaf spring 81 is disposed on the second step portion 32.
Even with the occlusion unit 80 configured as described above, the same operational effects can be achieved.

Furthermore, as shown in FIG. 8, elastic leg pieces (biasing support members) 91 that gradually extend toward one side in the circumferential direction from the lower end opening edge of the closing cylinder 12 toward the lower side, A plurality of closing units 90 may be formed over the entire area.
In the illustrated example, the elastic leg piece 91 is formed such that a long plate piece is bent along the circumferential direction, and the lower end edge 91a faces one side in the circumferential direction. The closing unit 90 in this case may be accommodated in the upper base cylinder portion 25 in a state where the side edge 91 b of the elastic leg piece 91 is disposed on the second step portion 32.
Even the closure unit 90 configured in this way can achieve the same effects.

DESCRIPTION OF SYMBOLS 1,70 ... Replacement container 2 ... Container main body 2a ... Port part of container main body 3 ... Cap 4 ... Inner member 10 ... Storage cylinder part 12 ... Closure cylinder 12b ... Communication recessed part 14 ... Elastic ring (biasing support body)
DESCRIPTION OF SYMBOLS 31 ... Communication opening 50 ... Discharger 53 ... Pressing head 53a ... Discharge hole 60 ... Cylinder 73 ... Coil spring (biasing support body)
91 ... Elastic leg piece (biasing support)

Claims (2)

A container body for storing contents;
A cap removably attached to the mouth of the container body;
An inner member having an accommodating cylinder disposed in the mouth,
A push-down type discharge device that discharges the contents from the discharge hole by pressing the pressing head is attached to the mouth portion from which the cap has been removed, and a cylinder that communicates with the discharge hole is included in the discharge device. A replacement container accommodated in the accommodating cylinder part,
A communication opening that connects the inside of the container main body and the inside of the housing cylinder is formed in the housing cylinder,
The inner member is
A closed cylinder that is slidably fitted in the receiving cylinder part and closes the communication opening from the inside of the receiving cylinder part;
An urging support that supports the cylinder so as to be movable downward in an upward urging state;
A communication recess that opens toward the communication opening is formed on the outer peripheral surface of the closed cylinder,
The closed cylinder is fitted and fixed to the cylinder when the cylinder is inserted into the housing cylinder portion against the upward biasing force of the biasing support,
The communication recess communicates with the outside of the storage cylinder when the cylinder and the closing cylinder are restored and displaced upward with respect to the storage cylinder by the upward biasing force of the biasing support. Replacement container to be used. In the replacement container according to claim 1,
The communication recess is replaced when the closed cylinder is restored and displaced upward with respect to the accommodating cylinder by the upward biasing force of the biasing support. container.

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